Cut off both ends of cucumbers and slice thinly.,In a bowl place the cucumbers and sprinkle with 1 teaspoon salt; let stand 5 to 10 minutes.,When cucumbers are flexible, wrap in a cloth or paper towel and squeeze out water.,______,Heat salad oil.,Quickly stir-fry beef over high heat and season with Mixture A.,Add cucumber slices and stir-fry briefly.,Season with Mixture B.,Transfer to serving plate and garnish with shredded chili pepper.